Tube Holder Kit, Quad Variable, 6 x 70mm Back Catalog number: 800231 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800165-10 Sorbent tube adapter nipple for Dual manifold High Price on request 800066 Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubi Price on request 800071-10 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request